Why Are Tetracycline Stains on Teeth Difficult to Remove?
Tetracycline stains cling to enamel's essential calcium-rich hydroxyapatite structure, making removal challenging. The severity of the stain dictates its depth penetration, potentially reaching the dentin layer. Deeper stains seep into porous enamel more stubbornly, requiring advanced removal methods. Traditional whitening techniques struggle to combat these intrinsic tetracycline stains due to their resistance to conventional agents. […]
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